IT infrastructure refers to all the underlying elements that necessary provide technological services to an end-user. Besides, it allows an organization which delivers IT solutions and services to its employees, partners and/or customers. In an IT infrastructure, the interruption service can result in significant financial penalties and/or a loss of users trust. So to ensure that our IT equipment (hardware, software, network…etc) is available to perform the expected level, we need to be proactive in detecting incidents that disrupt the proper functioning of the company. The main objective of our work is to propose an efficient diagnostic platform for an IT infrastructure called (MAITD) in order to assist the company technicians to have a pertinent solution(s) in a short time face to decision-making problem.